On the walls of fractures Filled with nepheline in alkalic pegmatite in a differentiated alkalic massif (Lovozero massif, Russia).

IMA Status:

Approved IMA 1973

Locality:

From the Jubilee pegmatite, on Mt. Karnasurt, near the valley of the Ilmajok River, Lovozero massif, and in the Khibiny massif, Kola Peninsula, Russia. At Mont Saint-Hilaire, Quebec, C Link to&nbspMinDat.org Location Data.

Name Origin:

Named in honor of the international group of scientists, captained by Thor Heyerdahl, crewing the papyrus ship Ra (1969-1970).